Let’s go through each set of numbers and put them in order from smallest to largest.
We’ll look at the hundreds digit first. If those are the same, we check the tens digit. If those are also the same, we check the ones digit.
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Set 1: 252, 512, 625, 652
- 252 → starts with 2 (smallest)
- 512 → starts with 5
- 625 and 652 both start with 6 → compare tens: 2 vs 5 → so 625 < 652
Order:
252, 512, 625, 652
Wait — that’s already in order! But let’s double-check:
252 < 512? Yes
512 < 625? Yes
625 < 652? Yes
✔ Correct as is.
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Set 2: 625, 266, 662, 552
Look at hundreds digits:
- 266 → 2 (smallest)
- 552 → 5
- 625 and 662 → both 6 → compare tens: 2 vs 6 → 625 < 662
So order:
266, 552, 625, 662
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Set 3: 376, 737, 535, 773
Hundreds digits:
- 376 → 3
- 535 → 5
- 737 and 773 → both 7 → compare tens: 3 vs 7 → 737 < 773
Order:
376, 535, 737, 773
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Set 4: 195, 76, 237, 45
Note: 76 and 45 are only 2-digit numbers → they’re smaller than any 3-digit number.
Compare 45 and 76 → 45 < 76
Then 195 and 237 → 195 < 237
Full order:
45, 76, 195, 237
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Set 5: 797, 597, 967, 559
Hundreds digits:
- 559 and 597 → both 5 → compare tens: 5 vs 9 → 559 < 597
- 797 → 7
- 967 → 9 (largest)
Order:
559, 597, 797, 967
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Set 6: 133, 391, 139, 129
All start with 1 or 3.
First, group by hundreds:
- 129, 133, 139 → all start with 1
- 391 → starts with 3 → biggest
Now sort the 100s:
129, 133, 139 → compare tens: all have 2 or 3
129 → tens = 2
133 and 139 → tens = 3 → then compare ones: 3 vs 9 → 133 < 139
So: 129, 133, 139, then 391
Order:
129, 133, 139, 391
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Set 7: 562, 886, 665, 682
Hundreds digits:
- 562 → 5
- 665 and 682 → both 6 → compare tens: 6 vs 8 → 665 < 682
- 886 → 8 (largest)
Order:
562, 665, 682, 886
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Set 8: 376, 72, 137, 54
Again, 72 and 54 are 2-digit → smaller than 3-digit numbers.
Compare 54 and 72 → 54 < 72
Then 137 and 376 → 137 < 376
Full order:
54, 72, 137, 376
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Set 9: 949, 423, 442, 929
Hundreds digits:
- 423 and 442 → both 4 → compare tens: 2 vs 4 → 423 < 442
- 929 and 949 → both 9 → compare tens: 2 vs 4 → 929 < 949
Order:
423, 442, 929, 949
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Set 10: 879, 890, 904, 789
Hundreds digits:
- 789 → 7 (smallest)
- 879 and 890 → both 8 → compare tens: 7 vs 9 → 879 < 890
- 904 → 9 (largest)
Order:
789, 879, 890, 904
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Final Answer:
252, 512, 625, 652
266, 552, 625, 662
376, 535, 737, 773
45, 76, 195, 237
559, 597, 797, 967
129, 133, 139, 391
562, 665, 682, 886
54, 72, 137, 376
423, 442, 929, 949
789, 879, 890, 904
Parent Tip: Review the logic above to help your child master the concept of worksheet on ordering numbers for grade 3.
